Hele vote-metoden hvor implementasjonen reflekterer bedre slik vi ville forklart forrutsetningene for brukertilgang.

SecurityLevelVoter#vote.java

public int vote(Authentication authentication, 
                Object object,
                Collection<ConfigAttribute> attributes) {

    Collection<ConfigAttribute> supportedAttributes =
        select(attributes, new SupportedBy(this));
    if (supportedAttributes.isEmpty()) {
        return ACCESS_ABSTAIN;
    }

    Object p = authentication.getPrincipal();
    if (p instanceof MyPrincipal 
        && exists(supportedAttributes, new AcceptingSecurityLevelOf((MyPrincipal) p))) {
        return ACCESS_GRANTED;
    } else {
        return ACCESS_DENIED;
    }
}